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Unread 05-15-2011, 09:12 PM   #1
cdmiller2
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258 valve cover will not seal

My I recently had my aluminum valve cover off, I reused the old gasket and it leaked, someone at my work suggested Hi-temp rtv, so I tryed that, it lasted about two drives before it started leaking. I ordered a new gasket tonight, does anyone know the proper bolt length for a clifford valve cover?

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Unread 05-15-2011, 09:24 PM   #2
JaySch
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Mine ia doing the same thing. Leaking bad!
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Unread 05-15-2011, 09:35 PM   #3
Coiz
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I had an aluminum Clifford 6=8 that kept leaking in college. We took it off and the straight edge told us it was warped by over .040". The metal shop professor milled the surface flat and it never leaked again.
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Unread 05-15-2011, 09:36 PM   #4
SlikRic
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Place thin coat HT RTV on cover and head, allow to setup for about 10 mins. Then place NEW gasket on head, place valve cover on. Start in the middle both sides and only hand tighten,working your way outward on both sides. Let set about 10 mins then working both sides from middle to outside and torque to spec.Has never failed me yet
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Unread 05-15-2011, 09:40 PM   #5
Coiz
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^^^ I second SlikRic except I wait 12-24 hours between hand tight and final torque.
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Unread 05-16-2011, 09:04 AM   #6
littlebuddie
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What kind of gasket are you using?
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Unread 05-16-2011, 10:11 AM   #7
cdmiller2
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The new one I ordered is a factory style rubber one
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Unread 05-16-2011, 10:48 AM   #8
littlebuddie
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Can you give us some information about your CJ..................fill in your signature with basic information so we don't have to ask a lot of questions about what you are working on. Engine, trans, carb, etc.
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Unread 05-17-2011, 09:12 AM   #9
wm69
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Shouldn't the Clifford valve cover be cork? Mine is.
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Unread 05-17-2011, 11:34 AM   #10
littlebuddie
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Quote:
Originally Posted by wm69 View Post
Shouldn't the Clifford valve cover be cork? Mine is.
I was gonna' say..............but we don't really know what's being worked on here.
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Unread 05-17-2011, 11:58 AM   #11
pspradlin2
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It can be easy to over tighten on the valve cover. I went trough 2 gasket last year before I did the RTV along with a new gasket and only hand tight, set for 12 hours, then torque to spec. stopped leaking....as for the bolt length i wouldn't know.
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